<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>wh2107 聊天室 </title>
  <style>
  .chatroom{
    width:280px;
    height:420px;
    border:1px solid darkgoldenrod;
    border-radius: 10px;
    padding:10px;
    overflow: auto;
  }
  .text{
    font-size: 14px;
    color:#999;
  }
  </style>
</head>
<body>
  <div class="chat">
      <h2>wh2107 聊天室</h2>
      <div class="chatroom" id="chatroom">

      </div>
      <div>
        <input type="text" id="word" placeholder="请输入聊天内容">
        <button id="sendbtn">发送</button>
      </div>
  </div>

  <script>
    // # 客户端的 Socket
    // # 创建客户端的socket 
    // # 链接服务器的socket 
    // # 发送消息到服务器端 
    // # 接收来自服务器的 数据   
    // # 监听服务器的socket 关闭 error

    window.onload = function(){
      // # 创建客户端的socket 
      // # 链接服务器的socket 
      const socket = new WebSocket("ws://192.168.52.116:3800");

      socket.onopen = function(){
        // # 发送消息到服务器端 
        socket.send("大家好,我是你们的一员...")  
      }

      // # 接收来自服务器的 数据 
      socket.onmessage = function(data){
        console.log(data)
        var chatroom = document.getElementById("chatroom")
        chatroom.innerHTML += `<p class="text"> ${data.data}</p>`;
      }
      
      function sendMsg(){
          var word = document.getElementById("word");
          socket.send(word.value)
          word.value = "";
      }

      sendbtn.onclick = function(){
        sendMsg()
      }

      document.onkeydown = function(e){
        if(e.keyCode==13){
          sendMsg()
        }
      }

      socket.onclose = function(){
        console.log("服务器突然宕机了...")
      }

      socket.onerror = function(){
        console.log("服务器出现异常了...")
      }
    }
  </script>
</body>
</html>